Chapter 5, Problem 7E

Determine the concentration of the ion indicated in each solution.
$\left(\text{a}\right)\text{ [K' in 0}{\text{.238 M KNO}}_{\text{2}}\text{;}$ $\left(\text{b}\right)\left[{\text{NO}}_{\text{3}}\right]\text{ in 0}\text{.167 M Ca}{\left({\text{INO}}_{\text{2}}\right)}_{\text{2,}}\left(\text{c}\right){\text{ (AI}}^{\text{24}}\text{in 0}{\text{.083 M AI}}_{\text{2}}{\text{SO}}_{\text{4}}\text{3; }\left(\text{d}\right){\text{ [Na}}^{\text{1}}\text{in 0}{\text{.209 M Na}}_{\text{2}}{\text{PO}}_{\text{4}}\text{.}$